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Computer Adavances in the Last Decade

I wrote a comment on a social media post where someone claimed that there’s no computer advances in the last 12 years which got long so it’s worth a blog post.

In the last decade or so new laptops have become cheaper than new desktop PCs. USB-C has taken over for phones and for laptop charging so all recent laptops support USB-C docks and monitors with USB-C docks built in have become common. 4K monitors have become cheap and common and higher than 4K is cheap for some use cases such as ultra wide. 4K TVs are cheap and TVs with built-in Android computers for playing internet content are now standard. For most use cases spinning media hard drives are obsolete, SSDs large enough for all the content most people need to store are cheap. We have gone from gigabit Ethernet being expensive to 2.5 gigabit being cheap.

12 years ago smart phones were very limited and every couple of years there would be significant improvements. Since about 2018 phones have been capable of doing most things most people want. 5yo Android phones can run the latest apps and take high quality pics. Any phone that supports VoLTE will be good for another 5+ years if it has security support. Phones without security support still work and are quite usable apart from being insecure. Google and Samsung have significantly increased their minimum security support for their phones and the GKI project from Google makes it easier for smaller vendors to give longer security support. There are a variety of open Android projects like LineageOS which give longer security support on a variety of phones. If you deliberately choose a phone that is likely to be well supported by projects like LineageOS (which pretty much means just Pixel phones) then you can expect to be able to actually use it when it is 10 years old. Compare this to the Samsung Galaxy S3 released in 2012 which was a massive improvement over the original Galaxy S (the S2 felt closer to the S than the S3). The Samsung Galaxy S4 released in 2013 was one of the first phones to have FullHD resolution which is high enough that most people can’t easily recognise the benefits of higher resolution. It wasn’t until 2015 that phones with 4G of RAM became common which is enough that for most phone use it’s adequate today.

Now that 16G of RAM is affordable in laptops running more secure OSs like Qubes is viable for more people. Even without Qubes, OS security has been improving a lot with better compiler features, new languages like Rust, and changes to software design and testing. Containers are being used more but we still aren’t getting all the benefits of that. TPM has become usable in the last few years and we are only starting to take advantage of what it can offer.

In 2012 BTRFS was still at an early stage of development and not many people wanted to use it in production, I was using it in production then and while I didn’t lose any data from bugs I did have some downtime because of BTRFS issues. Now BTRFS is quite solid for server use.

DDR4 was released in 2014 and gave significant improvements over DDR3 for performance and capacity. My home workstation now has 256G of DDR4 which wasn’t particularly expensive while the previous biggest system I owned had 96G of DDR3 RAM. Now DDR5 is available to again increase performance and size while also making DDR4 cheap on the second hand market.

This isn’t a comprehensive list of all advances in the computer industry over the last 12 years or so, it’s just some things that seem particularly noteworthy to me.

Please comment about what you think are the most noteworthy advances I didn’t mention.

VoLTE in Australia

Introduction

In Australia the 3G mobile frequencies are to be reused so they are in the process of shutting down the 3G service. That means that everyone has to use VoLTE (Voice Over LTE) for phone calls (including emergency calls). The shutdown time varies by telco, Kogan Mobile (one of the better services which has good value for money and generally works well) shut down their 3G service in January. Aldi Mobile (another one of the good services which is slightly more expensive but has included free calls to most first-world countries and uses the largest phone network) will shut theirs down at the end of August.

For background there’s a Fosdem talk about OpenSIPS with VoLTE and VoNR [1], it’s more complex than you want to know. Also VoNR (Voice over New Radio) is the standard for 5G voice and it’s different from VoLTE and has a fallback to VoLTE. Another good lecture for background information is the Fosdem talk on VoLTE at the handset end [2].

The PinePhonePro

In October 2023 I tried using my PinePhonePro as my main phone but that only lasted a few days due to problems with calls and poor battery life [3]. Since then I went back to the Huawei Mate 10 Pro that I bought refurbished in June 2019 for $389. So that has been my main phone for 5 years now, giving a cost of $1.50 per week. I had tried using a Huawei Nova 7i running Android without Google Play as an experiment but that had failed, I do many things that need Android apps [4].

I followed the PinePhone wiki to get my PinePhonePro working with VoLTE [5]. That worked fine for me, the only difference from the instructions is that I had to use device /dev/ttyUSB3 and that the modem kept resetting itself during the process and when that happened I had to kill minicom and start again. After changing the setting and saving it the PinePhonePro seemed to work well with VoLTE on a Kogan Mobile SIM (so definitely not using 3G).

One issue I have found is that Plasma Mobile (my preferred FOSS phone GUI) appears to have a library issue that results in polling every 14ms even when the screen is locked [6]. If you have a few processes doing that (which means the most lightly used Plasma system) it really hurts battery use. The maintainer has quite reasonably deferred action on this bug report given the KDE 6 transition. Later on in the Trixie development cycle I hope to get this issue resolved, I don’t expect it to suddenly make battery life good. But it might make battery life acceptable.

I am now idly considering carrying around my PinePhonePro in a powered off state for situations where I might need to do high security operations (root logins to servers or online banking) but for which carrying a laptop isn’t convenient. It will do well for the turn on, do 30 mins of work that needs security, and then turn off scenario.

Huawei Mate 10 Pro and Redmi 9A

The Huawei Mate 10 Pro has been my main phone for 5 years and it has worked well, so it would be ideal if it could do VoLTE as the PinePhonePro isn’t ready yet.

All the web pages I’ve seen about the Mate 10 Pro say that it will either allow upgrading to a VoLTE configuration if run with the right SIM or only support it with the right SIM. I did a test with a Chinese SIM which gave an option of turning on VoLTE but didn’t allow any firmware updates and the VoLTE option went away when I put an Australian SIM in. Some forum comments had led me to believe that it would either permanently enable VoLTE or allow upgrading the firmware to one that enables VoLTE if I used a Chinese SIM but that is not the case. I didn’t expect a high probability of success but I had to give it a go as it’s a nice phone.

I did some tests on a Redmi 9A (a terrible phone that has really bad latency on the UI in spite of having reasonably good hardware). The one I tested on didn’t have VoLTE enabled when I got it, to test that I used the code *#*#4636#*#* in the dialler to get the menu of SIM information and it showed that VoLTE was not provisioned. I then had to update to the latest release of Android for that phone and enter *#*#86583#*#* in the dialler to enable VoLTE, the message displayed after entering that magic number must end in “DISABLE”. I get the impression that the code in question makes the phone not check certain aspects of whether the carrier is good for VoLTE and just do it. So apparently Kogan Mobile somehow gives the Redmi 9A the impression that VoLTE isn’t supported but if the phone just goes ahead and connects it will work. I don’t plan to use a Redmi 9A myself as it’s too slow, but I added it to my collection to offer to anyone else I know who needs a phone with VoLTE and doesn’t use the phone seriously or to someone who needs a known good phone for testing things.

Samsung Galaxy Note 9

I got some Samsung Galaxy Note 9 phones to run Droidian as an experiment [7]. But Droidian dropped support for the Note 9 and I couldn’t figure out how to enable VoLTE via Droidian, which was very annoying after I had spent $109 on a test phone and $215 on a phone for real use (I have no plans to try Droidian again at this time). I tried installing LineageOS on one Note 9 [8] which was much easier than expected (especially after previously installing Droidian). But VoLTE wasn’t an option. According to Reddit LineageOS doesn’t support VoLTE on Samsung devices and you can use a “magisk” module or a VoLTE enabler module but those aren’t supported by LineageOS either [9].

I downloaded an original image for the Note 9 from SamsMobile.com [10]. That image booted past the “orange stage” (where if you have problems then your phone is probably permanently useless) but didn’t boot into the OS. A friend helped me out with that and it turned out that the Heimdal flash tool on Linux didn’t do something it needed to do and that Odin on Windows was required. After using Odin everything was fine and I have a Note 9 with VoLTE running the latest Samsung firmware – which is security patch level 1st July 2022!!!

So I have a choice between using a Note 9 for data and SMS while running a current version of Lineage OS with all security fixes or running a Samsung image with no security updates for 2 years which supports phone calls. So based on this I have to recommend Pixel as the phone of choice, it has a decent level of support from Google and long term support from LineageOS. According to the LineageOS web site you can run the current version of Lineage on the original Pixel phone from 2016! Of course getting VoLTE to work on it might be another saga, but it would probably be easier to do with LineageOS on a Pixel than on a Samsung phone.

Conclusion

The operation of the Note 9 for me is decent now apart from the potential security issues. The same goes for selling one of the phones. The PinePhonePro still has potential to become my daily driver at some future time if I and others can optimise power use. Also a complicating factor is that I want to have both Jabber and Matrix be actually instant IM systems not IM with a 5 minute delay, so suspend mode isn’t a good option.

Pixel phones will be a much higher priority when looking at phones to buy in future. The older Pixel phones go for as little as $100 on eBay and can still run the latest LineageOS.

VoLTE seems needlessly complicated.

Links June 2024

Modos Labs have released the design of an e-ink display connected by USB-C [1]. They have provided a lot of background information on e-ink displays which isn’t available elsewhere. Excellent work!

Informative article about a company giving renters insecure locks while facilitating collusion to raise rents [2].

Insightful video by JimmyTheGiant about the destruction of housing estates in the UK [3]. I wonder how much of this was deliberate by the Tories.

Insightful video by Modern Vintage Gamer about the way Nintendo is destroying history by preventing people playing old games [4].

Interesting video by Louis Rossmann about the low quality of products and reviews on Amazon [5]. We all know about Enshittification, but it seems that Amazon is getting to the stage of being unusable for some products.

Amusing video by Folding Ideas about Decentraland an attampt at a blockchain based second life type thing which failed as you expect blockchain things to fail [6]. The top comment is a transcription of the actions of the speaker’s pet cat. ;)

Links May 2024 (late)

VoltageDivide has an interesting article on Unconventional Uses of FPGAs [1]. Tagline – Every sensor is a temperature sensor, nearly everything is a resistor or a conductor if you try hard enough and anything is an antenna. Datasheets are just a suggestion, and finally, often we pretend things are ideal, when they often are not.

Interesting blog post about the way npm modules that depend on everything exposed flaws in the entire npm system [2]. The conclusion should have included “use a fake name for doing unusual tests”.

Krebs on Security has an interesting article about MFA bombing [3]. Looks like Apple has some flaws in their MFA system, other companies developing MFA should learn from this.

Joey wrote an informative blog post about the Vultr hosting company wanting to extract data from VMs run for clients to train ML [4]. If your email is stored on such a VM it could be “generated” by an AI system.

John Goerzen wrote an interesting post looking at the causes of the xz issue from a high level [5].

Interesting article about self proclaimed Autistic pro-natalists [6]. They seem somewhat abusive to their kids and are happy to associate with neo-Nazis. :(

Joey Hess wrote an interesting blog post about the possibility of further undiscovered attacks on xz [7]. Going back to an earlier version seems like a good idea.

The Guardian has an interesting article about Amazon’s 2 pizza rule and the way the company is structured [8]. It’s interesting how they did it, but we really need to have it broken up via anti-trust legislation.

John Goerzen wrote an informative post about Facebook censorship and why we should all move to Mastodon [9]. Facebook needs to be broken up under anti-trust laws.

Kobold Letters is an attack on HTML email that results in the visual representation of email changing when it is forwarded. [10]. You could have the original email hide some sections which are revealed with the recipient forwards it for a CEO impersonation attack.

Creating a Micro Users’ Group

Fosdem had a great lecture Building an Open Source Community One Friend at a Time [1]. I recommend that everyone who is involved in the FOSS community watches this lecture to get some ideas.

For some time I’ve been periodically inviting a few friends to visit for lunch, chat about Linux, maybe do some coding, and watch some anime between coding. It seems that I have accidentally created a micro users’ group.

LUGs were really big in the mid to late 90s and still quite vibrant in the early 2000’s. But they seem to have decreased in popularity even before Covid19 and since Covid19 a lot of people have stopped attending large meetings to avoid health risks. I think that a large part of the decline of users’ groups has been due to the success of YouTube. Being able to choose from thousands of hours of lectures about computers on YouTube is a disincentive to spending the time and effort needed to attend a meeting with content that’s probably not your first choice of topic. Attending a formal meeting where someone you don’t know has arranged a lecture might not have a topic that’s really interesting to you. Having lunch with a couple of friends and watching a YouTube video that one of your friends assures you is really good is something more people will find interesting.

In recent times homeschooling [2] has become more widely known. The same factors that allow learning about computers at home also make homeschooling easier. The difference between the traditional LUG model of having everyone meet at a fixed time for a lecture and a micro LUG of a small group of people having an informal meeting is similar to the difference between traditional schools and homeschooling.

I encourage everyone to create their own micro LUG. All you have to do is choose a suitable time and place and invite some people who are interested. Have a BBQ in a park if the weather is good, meet at a cafe or restaurant, or invite people to visit you for lunch on a weekend.

USB-A vs USB-C

USB-A is the original socket for USB at the PC end. There are 2 variants of it, the first is for USB 1.1 to USB 2 and the second is for USB 3 which adds extra pins in a plug and socket compatible manner – you can plug a USB-A device into a USB-A socket without worrying about the speeds of each end as long as you don’t need USB 3 speeds.

The differences between USB-A and USB-C are:

  1. USB-C has the same form factor as Thunderbolt and the Thunderbolt protocol can run over it if both ends support it.
  2. USB-C generally supports higher power modes for charging (like 130W for Dell laptops, monitors, and plugpacks) but there’s no technical reason why USB-A couldn’t do it. You can buy chargers that do 60W over USB-A which could power one of our laptops via a USB-A to USB-C cable. So high power USB-A is theoretically possible but generally you won’t see it.
  3. USB-C has “DisplayPort alternate mode” which means using some of the wires for DisplayPort.
  4. USB-C is more likely to support the highest speeds than USB-A sockets for “super speed” etc. This is not a difference in the standards just a choice made by manufacturers.

While USB-C tends to support higher power delivery modes in actual implementations for connecting to a PC the PC end seems to only support lower power modes regardless of port. I think it would be really good if workstations could connect to monitors via USB-C and provide power, DisplayPort, and keyboard, mouse, etc over the same connection. But unfortunately the PC and monitor ends don’t appear to support such things.

If you don’t need any of those benefits in the list above (IE you are using USB for almost anything we do other than connecting a laptop to a dock/monitor/charger) then USB-A will do the job just as well as USB-C. The choice of which type to use should be based on price and which ports are available, EG My laptop has 2*USB-C ports and 2*USB-A so given that one USB-C port is almost always used for the monitor or for charging I don’t really want to use USB-C for anything else to avoid running out of ports.

When buying USB devices you can’t always predict which systems you will need to connect them to. Currently there are a lot of systems without USB-C that are working well and have no need to be replaced. I haven’t yet seen a system where the majority of ports are USB-C but that will probably happen in the next few years. Maybe in 2027 there will be PCs on sale with only two USB-A sockets forcing people who don’t want to use a USB hub to save both of them for keyboard and mouse. Currently USB-C keyboards and mice are available on AliExpress but they are expensive and I haven’t seen them in Australian stores. Most computer users don’t wear out keyboards or mice so a lot of USB-A keyboard and mice will be in service for a long time. As an aside there are still many PCs with PS/2 keyboard and mouse ports in service so these things don’t go away for a long time.

There is one corner case where USB-C is convenient which is when you want to connect a mass storage device for system recovery or emergency backup, want a high speed, and don’t want to spend time figuring out which of the ports are “super speed” (which can be difficult at the back of a PC with poor lighting). With USB-C you can expect a speed of at least 5Gbit/s and don’t have to worry about accidentally connecting to a USB 2 port as is the situation with USB-A.

For my own use the only times that I prefer USB-C over USB-A are for devices to connect to phones. Eventually I’ll get a laptop that only has USB-C ports and this will change, but even then adaptors are possible.

For someone who doesn’t know the details of how things works it’s not unreasonable to just buy the newest stuff and assume it’s better as it usually is. But hopefully blog posts like this can help people make more informed decisions.

Respect and Children

I attended the school Yarra Valley Grammer (then Yarra Valley Anglican School which I will refer to as “YV”) and completed year 12 in 1990. The school is currently in the news for a spreadsheet some boys made rating girls where “unrapeable” was one of the ratings. The school’s PR team are now making claims like “Respect for each other is in the DNA of this school”. I’d like to know when this DNA change allegedly occurred because respect definitely wasn’t in the school DNA in 1990! Before I go any further I have to note that if the school threatens legal action against me for this post it will be clear evidence that they don’t believe in respect. The actions of that school have wronged me, several of my friends, many people who aren’t friends but who I wish they hadn’t had to suffer and I hadn’t had to witness it, and presumably countless others that I didn’t witness. If they have any decency they would not consider legal action but I have learned that as an institution they have no decency so I have to note that they should read the Wikipedia page about the Streisand Effect [1] and keep it in mind before deciding on a course of action.

I think it is possible to create a school where most kids enjoy being there and enjoy learning, where hardly any students find it a negative experience and almost no-one finds it traumatic. But it is not possible to do that with the way schools tend to be run.

When I was at high school there was a general culture that minor sex crimes committed by boys against boys weren’t a problem, this probably applied to all high schools. Things like ripping a boy’s pants off (known as “dakking”) were considered a big joke. If you accept that ripping the pants off an unwilling boy is a good thing (as was the case when I was at school) then that leads to thinking that describing girls as “unrapeable” is acceptable. The Wikipedia page for “Pantsing” [2] has a reference for this issue being raised as a serious problem by the British Secretary of State for Education and Skills Alan Johnson in 2007. So this has continued to be a widespread problem around the world. Has YV become better than other schools in dealing with it or is Dakking and Wedgies as well accepted now as it was when I attended? There is talk about schools preparing kids for the workforce, but grabbing someone’s underpants without consent will result in instant dismissal from almost all employment. There should be more tolerance for making mistakes at school than at work, but they shouldn’t tolerate what would be serious crimes in other contexts. For work environments there have been significant changes to what is accepted, so it doesn’t seem unreasonable to expect that schools can have a similar change in culture.

One would hope that spending 6 years wondering who’s going to grab your underpants next would teach boys the importance of consent and some sympathy for victims of other forms of sexual assault. But that doesn’t seem to happen, apparently it’s often the opposite.

When I was young Autism wasn’t diagnosed for anyone who was capable of having a normal life. Teachers noticed that I wasn’t like other kids, some were nice, but some encouraged other boys to attack me as a form of corporal punishment by proxy – not a punishment for doing anything wrong (detentions were adequate for that) but for being different. The lesson kids will take from that sort of thing is that if you are in a position of power you can mistreat other people and get away with it. There was a girl in my year level at YV who would probably be diagnosed as Autistic by today’s standards, the way I witnessed her being treated was considerably worse than what was described in the recent news reports – but it is quite likely that worse things have been done recently which haven’t made the news yet. If this issue is declared to be over after 4 boys were expelled then I’ll count that as evidence of a cover-up. These things don’t happen in a vacuum, there’s a culture that permits and encourages it.

The word “respect” has different meanings, it can mean “treat a superior as the master” or “treat someone as a human being”. The phrase “if you treat me with respect I’ll treat you with respect” usually means “if you treat me as the boss then I’ll treat you as a human being”. The distinction is very important when discussing respect in schools. If teachers are considered the ultimate bosses whose behaviour can never be questioned then many boys won’t need much help from Andrew Tate in developing the belief that they should be the boss of girls in the same way. Do any schools have a process for having students review teachers? Does YV have an ombudsman to take reports of misbehaving teachers in the way that corporations typically have an ombudsman to take reports about bad managers? Any time you have people whose behaviour is beyond scrutiny or oversight you will inevitably have bad people apply for jobs, then bad things will happen and it will create a culture of bad behaviour. If teachers can treat kids badly then kids will treat other kids badly, and this generally ends with girls being treated badly by boys.

My experience at YV was that kids barely had the status of people. It seemed that the school operated more as a caretaker of the property of parents than as an organisation that cares for people. The current YV website has a Whistleblower policy [3] that has only one occurrence of the word “student” and that is about issues that endanger the health or safety of students. Students are the people most vulnerable to reprisal for complaining and not being listed as an “eligible whistleblower” shows their status. The web site also has a flowchart for complaints and grievances [4] which doesn’t describe any policy for a complaint to be initiated by a student. One would hope that parents would advocate for their children but that often isn’t the case. When discussing the possibility of boys being bullied at school with parents I’ve had them say things like “my son wouldn’t be so weak that he would be bullied”, no boy will tell his parents about being bullied if that’s their attitude! I imagine that there are similar but different issues of parents victim-blaming when their daughter is bullied (presumably substituting immoral for weak) but don’t have direct knowledge of the topic. The experience of many kids is being disrespected by their parents, the school system, and often siblings too. A school can’t solve all the world’s problems but can ideally be a refuge for kids who have problems at home.

When I was at school the culture in the country and the school was homophobic. One teacher when discussing issues such as how students could tell him if they had psychological problems and no-one else to talk to said some things like “the Village People make really good music” which was the only time any teacher said anything like “It’s OK to be gay” (the Village People were the gayest pop group at the time). A lot of the bullying at school had a sexual component to it. In addition to the wedgies and dakking (which while not happening often was something you had to constantly be aware of) I routinely avoided PE classes where a shower was necessary because of a thug who hung around by the showers and looked hungrily at my penis, I don’t know if he had a particular liking to mine or if he stared at everyone that way. Flashing and perving was quite common in change rooms. Presumably as such boy-boy sexual misbehaviour was so accepted that led to boys mistreating girls.

I currently work for a company that is active in telling it’s employees about the possibility of free psychological assistance. Any employee can phone a psychologist to discuss problems (whether or not they are work related) free of charge and without their manager or colleagues knowing. The company is billed and is only given a breakdown of the number of people who used the service and roughly what the issue was (work stress, family, friends, grief, etc). When something noteworthy happens employees are given reminders about this such as “if you need help after seeing a homeless man try to steal a laptop from the office then feel free to call the assistance program”. Do schools offer something similar? With the school fees paid to a school like YV they should be able to afford plenty of psychologist time. Every day I was at YV I saw something considerably worse than laptop theft, most days something was done to me.

The problems with schools are part of larger problems with society. About half of the adults in Australia still support the Liberal party in spite of their support of Christian Porter, Cardinal Pell, and Bruce Lehrmann. It’s not logical to expect such parents to discourage their sons from mistreating girls or to encourage their daughters to complain when they are mistreated. The Anglican church has recently changed it’s policy to suggesting that victims of sexual abuse can contact the police instead of or in addition to the church, previously they had encouraged victims to only contact the church which facilitated cover-ups. One would hope that schools associated with the Anglican church have also changed their practices towards such things.

I approve of the “respect is in our DNA” concept, it’s like Google’s former slogan of “Don’t be evil” which is something that they can be bound to.

Here’s a list of questions that could be asked of schools (not just YV but all schools) by journalists when reporting on such things:

  1. Do you have a policy of not trying to silence past students who have been treated badly?
  2. Do you take all sexual assaults seriously including wedgies and dakking?
  3. Do you take all violence at school seriously? Even if there’s no blood? Even if the victim says they don’t want to make an issue of it?
  4. What are your procedures to deal with misbehaviour from teachers? Do the students all know how to file complaints? Do they know that they can file a complaint if they aren’t the victim?
  5. Does the school have policies against homophobia and transphobia and are they enforced?
  6. Does the school offer free psychological assistance to students and staff who need it? NB This only applies to private schools like YV that have huge amounts of money, public schools can’t afford that.
  7. Are serious incidents investigated by people who are independent of the school and who don’t have a vested interest in keeping things quiet?
  8. Do you encourage students to seek external help from organisations like the ones on the resources list of the Grace Tame Foundation [5]? Having your own list of recommended external organisations would be good too.

Counter Arguments

I’ve had practice debating such things, here’s some responses to common counter arguments.

  • Teachers are nice people how dare you criticise them. Teachers like any other large group of people includes good and bad people. The issue is how well the good people are supported in doing good things, how much effort is spent on tracking down and removing the bad people, and how much effort is spent training people to be the best version of themselves. Also my father worked as a teacher so I really don’t think that all teachers are bad.
  • Teachers are overworked and underpaid and you shouldn’t criticise them. When a school has 25 students in a class whose parents each pay $30,000 per annum the school can afford to pay as much as is necessary. Arguments about teachers being overworked and underpaid are a criticism of the organisation of private school and of government priorities for public schools not a counter argument to criticisms of the way schools operate.
  • When I went to school no bad things happened. Did you go to YV? If not then your experience isn’t relevant to this post.
  • I was a prefect at YV and didn’t see any bad things, if you saw bad things you should have reported it to me. I was not aware of any prefect who had a history of opposing bullying in previous years, I can think of some who had a history of encouraging it. Prefects were selected on the basis of supporting the system so anyone who would be expected to try to change things would have been rejected.
  • Children will make false and frivolous claims so we should ignore most of what they say, therefore complaints should only come from parents. Children have considerably less ability to lie than adults and the senior teachers are much better at detecting lies than most people. Sorting out accurate claims from false ones shouldn’t be difficult but if you reject all criticism as false claims then you will definitely miss reports of bad things and allow problems to continue.
  • I had a hard time at school and I turned out fine. If having bad things done to you doesn’t make you want to protect others from the same things then you didn’t turn out fine at all.
  • Kids need to toughen up to survive the real world. The “real world” that I live in doesn’t involve much violence at all, even having someone raise their voice at work is uncommon. Of the situations where being “tough” due to my experience at YV has been useful almost all of them involve me choosing to help someone I don’t know in a dangerous situation while other men pretend that they didn’t even notice it. The real solution is to create a world with less violence and a large part of that involves improving schools.

Conclusion

I don’t think that YV is necessarily worse than other schools, although I’m sure that representatives of other private schools are now working to assure parents of students and prospective students that they are.

I don’t think that all the people who were employed as teachers there when I attended were bad people, some of them were nice people who were competent teachers. But a few good people can’t turn around a bad system. I will note that when I attended all the sports teachers were decent people, it was the only department I could say such things about. But sports involves situations that can lead to a bad result, issues started at other times and places can lead to violence or harassment in PE classes regardless of how good the teachers are.

Teachers who know that there are problems need to be able to raise issues with the administration. When a teacher quits teaching to join the clergy and another teacher describes it as “a loss for the clergy but a gain for YV” it raises the question of why the bad teacher in question couldn’t have been encouraged to leave earlier.

A significant portion of the population will do whatever is permitted. If you say “no teacher would ever bully a student so we don’t need to look out for that” then some teacher will do exactly that.

I hope that this will lead to changes both in YV and in other schools. But if they declare this issue as resolved after expelling 4 students then something similar or worse will happen again. At least now students know that when this sort of thing happens they can send evidence to journalists to get some action.

Kogan 5120*2160 40″ Monitor

I’ve just got a new Kogan 5120*2160 40″ curved monitor. It cost $599 including shipping etc which is much cheaper than the Dell monitor with similar specs selling for about $2500. For monitors with better than 4K resolution (by which I don’t mean 5K*1440) this is the cheapest option. The nearest competitors are the 27″ monitors that do 5120*2880 from Apple and some companies copying Apple’s specs. While 5120*2880 is a significantly better resolution than what I got it’s probably not going to help me at 27″ size.

I’ve had a Dell 32″ 4K monitor since the 1st of July 2022 [1]. It is a really good monitor and I had no complaints at all about it. It was clearer than the Samsung 27″ 4K monitor I used before it and I’m not sure how much of that is due to better display technology (the Samsung was from 2017) and how much was due to larger size. But larger size was definitely a significant factor.

I briefly owned a Phillips 43″ 4K monitor [2] and determined that a 43″ flat screen was definitely too big. At the time I thought that about 35″ would have been ideal but after a couple of years using a flat 32″ screen I think that 32″ is about the upper limit for a flat screen. This is the first curved monitor I’ve used but I’m already thinking that maybe 40″ is too big for a 21:9 aspect ratio even with a curved screen. Maybe if it was 4:4 or even 16:9 that would be ok. Otherwise the ideal for a curved screen for me would be something between about 36″ and 38″. Also 43″ is awkward to move around my desk. But this is still quite close to ideal.

The first system I tested this on was a work laptop, a Dell Latitude 7400 2in1. On the Dell dock that did 4K resolution and on a HDMI cable it did 1440p which was a disappointment as that laptop has talked to many 4K monitors at native resolution on the HDMI port with the same cable. This isn’t an impossible problem, as I work in the IT department I can just go through all the laptops in the store room until I find one that supports it. But the 2in1 is a very nice laptop, so I might even just keep using it in 4K resolution when WFH. The laptop in question is deemed an “executive” laptop so I have to wait another 2 years for the executives to get new laptops before I can get a newer 2in1.

On my regular desktop I had the problem of the display going off for a few seconds every minute or so and also occasionally giving a white flicker. That was using 5120*2160 with a DisplayPort switch as described in the blog post about the Dell 32″ monitor. When I ran it in 4K resolution with the DisplayPort switch from my desktop it was fine. I then used the DisplayPort cable that came with the monitor directly connecting the video card to the display and it was fine at 5120*2160 with 75Hz.

The monitor has the joystick thing that seems to have become some sort of standard for controlling modern monitors. It’s annoying that pressing it in powers it off. I think there should be a separate button for that. Also the UI in general made me wonder if one of the vendors of expensive monitors had paid whoever designed it to make the UI suck.

The monitor had a single dead pixel in the center of the screen about 1/4 the way down from the top when I started writing this post. Now it’s gone away which is a concern as I don’t know which pixels might have problems next or if the number of stuck pixels will increase. Also it would be good if there was a “dark mode” for the WordPress editor. I use dark mode wherever possible so I didn’t notice the dead pixel for several hours until I started writing this blog post.

I watched a movie on Netflix and it took the entire screen area, I don’t know if they are storing movies in 64:27 ratio or if the clipped the top and bottom, it was probably clipped but still looked OK. The monitor has different screen modes which make it look different, I can’t see much benefit to the different modes. The “standard” mode is what I usually use and it’s brighter and the “movie” mode seems OK for the one movie I’ve watched so far.

In other news BenQ has just announced a 3840*2560 28″ monitor specifically designed for programming [3]. This is the first time I’ve heard of a monitor with 3:2 ratio with modern resolution, we still aren’t at the 4:3 type ratio that we were used to when 640*480 was high resolution but it’s a definite step in the right direction. It’s also the only time I recall ever seeing a monitor advertised as being designed for programming. In the 80s there were home computers advertised as being computers for kids to program, but at that time it was either TV sets for monitors or monitors sold with computers. It was only after the IBM PC compatible market took off that having a choice of different monitors for one computer was a thing. In recent years monitors advertised as being for office use (meaning bright and expensive) have become common as are monitors designed for gamer use (meaning high refresh rate). But BenQ seems to be the first to advertise a monitor for the purpose of programming. They have a “desktop partition” feature (which could be software or hardware – the article doesn’t make it clear) to give some of the benefits of a tiled window manager to people who use OSs that don’t support such things. The BenQ monitor is a bit small for my taste, I don’t know if my vision is good enough to take advantage of 3840*2560 in a 28″ monitor nowadays. I think at least 32″ would be better. Google seems to be really into buying good monitors for their programmers, if every Google programmer got one of those BenQ monitors then that would be enough sales to make it worth-while for them.

I had hoped that we would have 6K monitors become affordable this year and 8K become less expensive than most cars. Maybe that won’t happen and we will instead have a wider range of products like the ultra wide monitor I just bought and the BenQ programmer’s monitor. If so I don’t think that will be a bad result.

Now the question is whether I can use this monitor for 2 years before finding something else that makes me want to upgrade. I can afford to spend the equivalent of a bit under $1/day on monitor upgrades.

Links April 2024

Ron Garret wrote an insightful refutation to 2nd amendment arguments [1].

Interesting article from the UK about British Gas losing a civil suit about bill collecting techniques that are harassment [2]. This should be a criminal offence investigated by the police and prosecuted by the CPS.

David Brin wrote a new version of his essay about dealing with blackmail in the US political system [3].

Cory Doctorow gave an insightful lecture about Enshittification for the Transmediale festival in Berlin [4]. This link has video and a transcript, I read the transcript.

The Cut has an insightful article by a journalist who gave $50k in cash to a scammer and compares the scam to techniques used to extort false confessions [5].

Truth Dig has an informative article about how Nick Bostrom is racist and how his advocacy of eugenics influences Effective Altruism and a lot of Silicon Valley [6].

Bruce Scneier and Nathan Sanders wrote an insightful article about the problems with a frontier slogan for AI development [7].

Brian Krebs wrote an informative article about the links between Chinese APT companies and the Chinese government [8].

USB PSUs

I just bought a new USB PSU from AliExpress [1]. I got this to reduce the clutter in my bedroom, I charge my laptop, PineTime, and a few phones at the same time and a single PSU with lots of ports makes it easier. Also I bought a couple of really short USB-C cables as it’s been proven by both real life tests and mathematical modelling that shorter cables get tangled less. This power supply is based on Gallium Nitride (GaN) [2] technology which makes it efficient and cool.

One thing I only learned about after that purchase is the new USB PPS standard (see the USB Wikipedia page for details [3]). The PPS (Programmable Power Supply) standard allows (quoting Wikipedia) “allowing a voltage range of 3.3 to 21 V in 20 mV steps, and a current specified in 50 mA steps, to facilitate constant-voltage and constant-current charging”. What this means in practice (when phones support it which for me will probably be 2029 or something) is that the phone could receive power exactly matching the voltage needed for the battery and not have any voltage conversion inside the phone. Phones are designed to stop charging at a certain temperature, this probably doesn’t concern people in places like Northern Europe but in Australia it can be an issue. Removing the heat dissipation from inefficiencies in voltage change circuitry means the phone will be cooler when charging and can charge at a higher rate.

There is a “Certified USB Fast Charger” logo for chargers which do this, but it seems that at the moment they just include “PPS” in the feature list. So I highly recommend that GaN and PPS be on your feature list for your next USB PSU, but failing that the 240W PSU I bought for $36 was a good deal.